<template>
    <div class="login-container">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
            <div class="title-container">
                <h3 class="title">
                    后台系统登陆
                </h3>
            </div>

            <el-form-item prop="username">
        <span class="svg-container">
            <i class="fa fa-user"></i>
        </span>
                <el-input
                        ref="username"
                        v-model="loginForm.username"
                        :placeholder="'账号'"
                        name="username"
                        type="text"
                        auto-complete="on"
                />
            </el-form-item>

            <el-form-item prop="password">
        <span class="svg-container">
          <i class="fa fa-key"></i>
        </span>
                <el-input
                        ref="password"
                        v-model="loginForm.password"
                        :type="passwordType"
                        :placeholder="'密码'"
                        name="password"
                        auto-complete="on"
                        @keyup.enter.native="handleLogin"
                />
                <span class="show-pwd" @click="showPwd">
                    <i class="fa" :class="passwordType === 'password' ?'fa-eye-slash':'fa-eye' "></i>
                 </span>
            </el-form-item>

            <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">
                登陆
            </el-button>
        </el-form>

    </div>
</template>

<script>
    import {login} from "../../../api/base/common";

    export default {
        name: "login",
        data() {
            const validateUsername = (rule, value, callback) => {
                if (!value) {
                    callback(new Error('请输入用户名'))
                } else {
                    callback()
                }
            };
            const validatePassword = (rule, value, callback) => {
                if (value.length < 6) {
                    callback(new Error('密码不能少于6位'))
                } else {
                    callback()
                }
            };
            return {
                loginForm: {
                    username: '',
                    password: ''
                },
                loginRules: {
                    username: [{ required: true, trigger: 'blur', validator: validateUsername }],
                    password: [{ required: true, trigger: 'blur', validator: validatePassword }]
                },
                passwordType: 'password',
                loading: false,
            }
        },
        watch: {

        },
        created() {
            // window.addEventListener('hashchange', this.afterQRScan)
        },
        mounted() {
            if (this.loginForm.username === '') {
                this.$refs.username.focus()
            } else if (this.loginForm.password === '') {
                this.$refs.password.focus()
            }
        },
        destroyed() {
            // window.removeEventListener('hashchange', this.afterQRScan)
        },
        methods: {
            showPwd() {
                if (this.passwordType === 'password') {
                    this.passwordType = 'text'
                } else {
                    this.passwordType = 'password'
                }
                this.$nextTick(() => {
                    this.$refs.password.focus()
                });
            },
            handleLogin() {

                this.$refs.loginForm.validate(valid => {
                    if (valid) {
                        this.loading = true
                        this.loginForm.crypto=true;
                        login(this.loginForm).then(res=>{
                            if(res.status===0){
                               this.$store.dispatch("Login",res.data)
                                this.$router.replace("/")
                            }else {
                                this.$message.error(res.msg);
                            }
                            this.loading = false
                        }).catch(res=>{
                            this.loading = false
                        });

                    } else {
                        return false
                    }
                })
            },
        }
    }
</script>

<style scoped lang="sass">
@import "login"
</style>

<style rel="stylesheet/scss" lang="scss">


    /* 修复input 背景不协调 和光标变色 */
    /* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

    $bg:#283443;
    $light_gray:#eee;
    $cursor: #fff;

    @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
        .login-container .el-input input{
            color: $cursor;
            &::first-line {
                color: $light_gray;
            }
        }
    }

    /* reset element-ui css */
    .login-container {
        .el-input {
            display: inline-block;
            height: 47px;
            width: 85%;
            input {
                background: transparent;
                border: 0px;
                -webkit-appearance: none;
                border-radius: 0px;
                padding: 12px 5px 12px 15px;
                color: $light_gray;
                height: 47px;
                caret-color: $cursor;
                &:-webkit-autofill {
                    box-shadow: 0 0 0px 1000px $bg inset !important;
                    -webkit-text-fill-color: $cursor !important;
                }
            }
        }
        .el-form-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            color: #454545;
        }
    }
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
    $bg:#2d3a4b;
    $dark_gray:#889aa4;
    $light_gray:#eee;

    .login-container {
        min-height: 100%;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: $bg;
        overflow: hidden;
        .login-form {
            position: relative;
            width: 520px;
            max-width: 100%;
            margin: 0 auto;
            overflow: hidden;
        }
        .tips {
            font-size: 14px;
            color: #fff;
            margin-bottom: 10px;
            span {
                &:first-of-type {
                    margin-right: 16px;
                }
            }
        }
        .svg-container {
            padding: 6px 5px 6px 15px;
            color: $dark_gray;
            vertical-align: middle;
            width: 30px;
            display: inline-block;
        }
        .title-container {
            position: relative;
            .title {
                font-size: 26px;
                color: $light_gray;
                margin: 0px auto 40px auto;
                text-align: center;
                font-weight: bold;
            }
            .set-language {
                color: #fff;
                position: absolute;
                top: 3px;
                font-size:18px;
                right: 0px;
                cursor: pointer;
            }
        }
        .show-pwd {
            position: absolute;
            right: 10px;
            top: 7px;
            font-size: 16px;
            color: $dark_gray;
            cursor: pointer;
            user-select: none;
        }
        .thirdparty-button {
            position: absolute;
            right: 0;
            bottom: 6px;
        }
    }
</style>
